▎ 摘　　要

NOVELTY - Preparing bimetallic nickel cobaltate molecularly imprinted array sensor involves obtaining three-dimensional graphene group using graphene oxide solution, then dissolving and performing ultrasonic treatment, hydrothermal reaction, and heat treatment in sequence to obtain reduced graphene oxide with three-dimensional network structure, which is sliced and freeze-dried to obtain three-dimensional graphene group. The nickel cobalt oxide (NiCo2O4)/graphene nanowire array is obtained by moving the mixed solution of nickel chloride, cobalt nitrate, ammonium fluoride, and urea into a hydrothermal kettle, placing the three-dimensional graphene group in it for hydrothermal reaction, and waiting for the reaction after finishing, cooling, rinsing, drying and calcining to obtain NiCo2O4/graphene nanowire array. USE - Method for preparing bimetallic nickel cobaltate molecularly imprinted array sensor used in detecting residual sulfonamide drugs. ADVANTAGE - The method enables to prepare bimetallic nickel cobaltate molecularly imprinted array sensor, which has good anti-interference performance, stability, and strong popularization. DETAILED DESCRIPTION - The bimetallic nickel cobaltate molecularly imprinted array graphene sensor is obtained by immersing the prepared NiCo2O4/graphene nanowire array into electrodeposition solution, adopting the first cyclic voltammetry, and the deposition surface is close to platinum electrode to prepare a molecularly imprinted sensor, and immersing the sensor in 0.1M potassium dihydrogen phosphate buffer solution, and performing second cyclic voltammetry to obtain stable cyclic voltammetry curve and obtain holes at the same time. An INDEPENDENT CLAIM is included for use of bimetallic nickel cobaltate molecularly imprinted array sensor in detecting residual sulfonamide drugs, involves carrying out reaction at room temperature, and the array sensor is placed in a solution containing SAs to adsorb for 2-10 minutes, putting it in Britton Robinson (BR) buffer solution for DPV test peak current, after the reaction, the molecularly imprinted array sensor is placed in 0.05-0.15M sodium hydroxide (NaOH) solution to remove SAs template molecules for 5-10 minutes.